Table 4 Multivariate logistic regression model (continuation)

From: Lifestyles, environmental and phenotypic factors associated with lip cancer: a case–control study in southern Spain

 

No warts

Sporadic warts

Chronic warts

Phototype IV

1 (reference)

0.9 (0.2–3.7)

6.2 (0.6–67.5)

 

8 cases/23 controls

9 cases /16 controls

3 cases/3 controls

Phototype III

0.6 (0.2–2.3)

0.9 (0.2–4.6)

Undefined

 

9 cases/29 controls

5 cases/8 controls

0 cases/7controls

Phototype II

0.4 (0.1–1.1)

1.12 (0.3–4.2)

1.04 (0.3–4.3)

 

13 cases/75 controls

11 cases/24 controls

10 cases/12 controls

Phototype I

2.8 (0.8–9.8)

4.4 (1.01–19.1)

9.82 (0.5–177.0)

 

18 cases/31 controls

14 cases/8 controls

5 cases/2 controls

  1. OR for interaction terms 'Warts and phototype'; 95% CI, number of cases and controls in each cell (one control with missing value for phototype with chronic wart); adjusted by age, tobacco, alcohol, leaving the cigarette on the lip, study level, eye colour and sun exposure during outdoor work in summer
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